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@leiten gieten getraut @Hita JOSEPH T. HASKINS, OF ROOKPORT, MASSACHUSETTS, ASSIGNORTO 4HIM- SELF AND E. ROWE, OFVTHE SAME PLACE.

Letters Pate/nt No. T8,964,`dat ed fune 16, 1868.

7 IMPROVEMENT 1N Waerme-caucus.

TO ALL WHOMHIT MAY CONCERN:

Be it known that I, JOSEPH T. HASKINS, of Rockport, in the county of Essex, and State of Massachusetts, have invented a new and improved Warping-Ohuek; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the'art to make and usethe same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is arvertical longitudinal section ofmy'improved \varpingchuck,rtaken through the line :i: z, fig-2.

Figure 2 is a vertical cross-section of the same, taken through the line y y, iig. 1. l

Similar letters of reference indicate like parts.

My invention has for its object to improve the`construction ofthe common warping-chuck, so as to prevent the wearing or chafing of thewarps or lines in Vwarping a vessel, or when she'is fastened-to the wharf.

'When the chuck is formed in the ordinary manner, the great friction of the rope upon it constantly wears the rope. Then the vessel is fastened to thel Wharf', especially in rough weather, the constant sawing motion of the rope upon the jaws of the chuck, causes it to Wear away very rapidly, so much so as to`frequently make it necessary to out and splice it.

To remedy this, I insert friction-rollers A in the jaws of the chuck B, to receive the friction of the rope. The upper and lower ends of the rollers A enter recesses in the jawsV of the chuck B, so that the said'ends may be below the surface of the said jaws, to prevent ,the rope or liuc, however small it may be, from getting between the end of the roller and the jaw of the chuck, and being cut or chafed. The upper journals of the rollers A enter and work in sockets formed in the said jaws, and the lower journals enter and ivork ,in sockets formed in the plate C, which ts into and is' secured in a recess formed in the bottom of the chuck B for its reception, as shown in figs. 1 and 2. This construction enables the rollers to be passed up to their places through the bottom of the chuck, where they are secured in place by the plate C.

I claim as new, and desire to secure by Letters Paten'tl The friction-rollers A, when insertedl in the chuck by being passed through the bottom, and secured in place by the plate O, in combination with the recesses in thejaws of the chuck, and in the plate C, as herein shown and described.

JOSEPH T. HASKINS.

Witnesses:

ALFRED PARSONS, v WM. KNUTsrouD, Jr. 

